Pioneer PDP-6071PU Service Manual page 98

1
A
No video from USB input
⇒ USB
The image of the USB card
doesn't come out.
Yes
Has the function is selected Home
Media Gallery by Home menu?
Yes
Is the contents list are appear?
B
Yes
Has the signal come to IC6301?
Yes
Is the signal from IC6301 to
IC7201?
Yes
Is the signal input from IC7201 to
IC8001?
C
Yes
Has the symptom been settled
when the MAIN Assy is replaced?
Yes
Replace the MAIN Assy.
No monitor output
⇒ MONI_V
D
MONITOR OUT image is not
displayed.
Yes
Is a signal being input other than
the component or RGB signal?
Yes
Has the signal arrived to IC4701?
Yes
Is a signal output from IC4701?
(pin 79)
E
Yes
Is a signal arrived to CN8803?
Yes
Is a signal output from jack?
Yes
Finishing troubleshooting.
F
98
1
2
No
Select the input of specification
by the input switch.
No
Has USB memory or digital camerra
is connected to USB connecter?
No
Check around USB connecter or
USB cable and check between
pin 2, 3 of CN7101 and pin 305,
406 of IC6301.
No
Check between IC6301 and
IC7201. If there is no problem
then replace IC6301.
No
Check between IC7201 and
IC8001. If there is no problem
replace IC7201.
No
The panel is defective.
No
Only the component and RGB signals
cannot be output from MONITOR OUT.
Check the unit using either the
component or RGB signal.
No
Check the communication between
the jack and IC4701. If there was
no ploblem replace IO Assy.
No
Check around IC4701 and check the
communications between IC4701 and
28
the microcomputer. If there was no
ploblem then replace the MAIN ASSY.
No
Check the communication from IC4701
to CN4005. If there is no ploblem,
check the Flexible cable between
CN4005 and CN8803.
No
Check the communication between
the CN8803 and Jack. If there was
29
no ploblem replace IO Assy.
2
3
NG
Insert USB device such as
USB flash memory.
NG
Replace USB cable.
Waveforms
Input signal: Color-bar
IC4701 - pin 79
28
V: 1 V/div H: 20 µsec/div
NG
Replace flexible cable.
PDP-6071PU
3
4
R8801
29
V: 1 V/div H: 20 µsec/div
4